System and method for rapid replacement of robotic media mover in automated media library

ABSTRACT

A mover replacement system for removing a media mover, movable between an operating position and a removable position, from within a media library includes a module housing and a service tray. The module housing forms at least a part of a library housing. The service tray is removably positionable within the module housing. The service tray is configured to releasably retain the media mover when the media mover is in the removable position so that the service tray and the media mover are movable as an integral unit out of and into the module housing. The service tray includes a tray body and at least one locking mechanism that is movable relative to the tray body between a retracted position when the at least one locking mechanism is positioned not to engage the media mover, and a fully extended position when the at least one locking mechanism is positioned to retain the media mover relative to the tray body.

The present invention is directed toward a mover replacement system for quickly and easily removing a media mover from within a media library. The media library includes a library housing. The media mover is movable between an operating position and a removable position. In various embodiments, the mover replacement system includes a service tray and a capture assembly. The service tray is removably positionable within the library housing. The service tray includes a tray body. The capture assembly is configured to enable the service tray to securely receive and releasably retain the media mover when the media mover is in the removable position. The capture assembly includes at least one locking mechanism that is movable relative to the tray body between a retracted position when the at least one locking mechanism is positioned not to engage the media mover, and a fully extended position when the at least one locking mechanism is positioned to retain the media mover relative to the tray body when the media mover is in the removable position so that the service tray and the media mover are movable as an integral unit out of and into the library housing.

In some embodiments, the capture assembly further includes a first sensor that is positioned adjacent to the at least one locking mechanism, the first sensor being configured to sense a position of the media mover relative to the at least one locking mechanism.

In certain embodiments, the capture assembly further includes a mover assembly that selectively moves the at least one locking mechanism between the retracted position and the fully extended position. The mover assembly includes a motor shaft, a motor that selectively rotates the motor shaft, and a mechanism engager that engages an engaged surface of the at least one locking mechanism. In such embodiments, rotation of the motor shaft rotates the mechanism engager to move the at least one locking mechanism between the retracted position and the fully extended position. In some such embodiments, the capture assembly can further include a sensor assembly including a first sensor that senses the rotation of the motor shaft as the at least one locking mechanism is being moved between the retracted position and the fully extended position.

In some embodiments, the tray body defines a tray opening, and the media mover is releasably retained within the tray opening.

In certain such embodiments, the at least one locking mechanism includes a first extension arm and a second extension arm; wherein when the at least one locking mechanism is in the retracted position, neither the first extension arm nor the second extension arm extend into the tray opening; and wherein when the at least one locking mechanism is in the fully extended position, both the first extension arm and the second extension arm extend into the tray opening.

In some such embodiments, the at least one locking mechanism is further movable relative to the tray body to a partially extended position wherein the first extension arm extends into the tray opening but the second extension arm does not extend into the tray opening.

In certain embodiments, the mover replacement system further includes a plurality of guide rails that are coupled to the library housing, the guide rails being configured to guide the movement of the service tray into and out of the library housing.

In some embodiments, the library housing includes an insert cavity that is configured to receive the service tray.

In certain embodiments, the mover replacement system further includes an alignment assembly that is configured to ensure that the service tray is properly aligned within the library housing, the alignment assembly including a plurality of first alignment members that are coupled to the library housing, and a plurality of second alignment members that are coupled to the service tray. In such embodiments, each of the plurality of second alignment members is configured to engage one of the plurality of first alignment members as the service tray is positioned within the library housing.

The present invention is also directed toward a media library including a media mover and the mover replacement system as described above.

Additionally, the present invention is further directed toward a mover replacement system for removing a media mover from a media library, the media library including a library housing, the media mover being movable between an operating position and a removable position, the mover replacement system including a service tray that is removably positionable within the library housing, the service tray being configured to releasably retain the media mover when the media mover is in the removable position so that the service tray and the media mover are movable as an integral unit out of and into the library housing; and an alignment assembly that is configured to ensure that the service tray is properly aligned within the library housing, the alignment assembly including a plurality of first alignment members that are coupled to the library housing, and a plurality of second alignment members that are coupled to the service tray; wherein each of the plurality of second alignment members is configured to engage one of the plurality of first alignment members as the service tray is positioned within the library housing; and wherein each of the plurality of second alignment members is configured not to engage one of the plurality of first alignment members when the service tray has been removed from within the library housing.

Please amend and substitute the following paragraph for the previous paragraph beginning on page 21, line 14, as follows:

It is appreciated that proper positioning of the racks 23, the tray racks 466 and the module racks 362 relative to one another can be very critical to the design of the replacement system 236. Thus, in some embodiments, the tray rack assembly 464 can further include a resilient member 476, e.g., a spring, which is configured to effectively spring-load the tray rack assembly 464 to ensure such proper alignment as the service tray 242 is positioned within the module housing 248. More particularly, the resilient member 476 enables reference surfaces to be spring-loaded against each other on the racks and in the chassis to make sure that the racks 23, the tray racks 466 and the module racks 362 properly aligned relative to one another. In some embodiments, the resilient member 476 is configured and/or biased to position the service tray 242 a small distance, e.g., one to two inches, away from a fully seated position within the module housing 248. As such, when the service tray 242 is being positioned within the module housing 248, the service tray 242 must be forced against the bias of the resilient member 476 in the last one to two inches of the seating process. With such design, positional variation between the tray racks 466 and the module racks 362, e.g., due to temperature variations, part tolerances, contamination, etc., can be effectively accommodated so that the desired alignment between the racks 23, the tray racks 466 and the module racks 362 can be achieved.

Please delete the Abstract beginning at page 38, line 2, and replace with the following Abstract:

A mover replacement system for removing a media mover, movable between an operating position and a removable position, from within a media library includes a service tray and a capture assembly. The service tray is removably positionable within the library housing. The service tray includes a tray body. The capture assembly is configured to enable the service tray to securely receive and releasably retain the media mover when the media mover is in the removable position. The capture assembly includes at least one locking mechanism that is movable relative to the tray body between a retracted position when the at least one locking mechanism is positioned not to engage the media mover, and a fully extended position when the at least one locking mechanism is positioned to retain the media mover relative to the tray body when the media mover is in the removable position. 

1-20. (canceled)
 21. A mover replacement system for removing a media mover from a media library, the media library including a library housing, the media mover being movable between an operating position and a removable position, the mover replacement system comprising: a service tray that is removably positionable within the library housing, the service tray including a tray body; and a capture assembly that is configured to enable the service tray to securely receive and releasably retain the media mover when the media mover is in the removable position, the capture assembly including at least one locking mechanism that is movable relative to the tray body between a retracted position when the at least one locking mechanism is positioned not to engage the media mover, and a fully extended position when the at least one locking mechanism is positioned to retain the media mover relative to the tray body when the media mover is in the removable position so that the service tray and the media mover are movable as an integral unit out of and into the library housing.
 22. The mover replacement system of claim 21 wherein the capture assembly further includes a first sensor that is positioned adjacent to the at least one locking mechanism, the first sensor being configured to sense a position of the media mover relative to the at least one locking mechanism.
 23. The mover replacement system of claim 21 wherein the capture assembly further includes a mover assembly that selectively moves the at least one locking mechanism between the retracted position and the fully extended position, the mover assembly including a motor shaft, a motor that selectively rotates the motor shaft, and a mechanism engager that engages an engaged surface of the at least one locking mechanism; wherein rotation of the motor shaft rotates the mechanism engager to move the at least one locking mechanism between the retracted position and the fully extended position.
 24. The mover replacement system of claim 23 wherein the capture assembly further includes a sensor assembly including a first sensor that senses the rotation of the motor shaft as the at least one locking mechanism is being moved between the retracted position and the fully extended position.
 25. The mover replacement system of claim 21 wherein the tray body defines a tray opening, and wherein the media mover is releasably retained within the tray opening.
 26. The mover replacement system of claim 25 wherein the at least one locking mechanism includes a first extension arm and a second extension arm; wherein when the at least one locking mechanism is in the retracted position, neither the first extension arm nor the second extension arm extend into the tray opening; and wherein when the at least one locking mechanism is in the fully extended position, both the first extension arm and the second extension arm extend into the tray opening.
 27. The mover replacement system of claim 26 wherein the at least one locking mechanism is further movable relative to the tray body to a partially extended position wherein the first extension arm extends into the tray opening but the second extension arm does not extend into the tray opening.
 28. The mover replacement system of claim 21 further comprising a plurality of guide rails that are coupled to the library housing, the guide rails being configured to guide the movement of the service tray into and out of the library housing.
 29. The mover replacement system of claim 21 wherein the library housing includes an insert cavity that is configured to receive the service tray.
 30. The mover replacement system of claim 21 further comprising an alignment assembly that is configured to ensure that the service tray is properly aligned within the library housing, the alignment assembly including a plurality of first alignment members that are coupled to the library housing, and a plurality of second alignment members that are coupled to the service tray; wherein each of the plurality of second alignment members is configured to engage one of the plurality of first alignment members as the service tray is positioned within the library housing.
 31. A media library including a media mover and the mover replacement system of claim
 21. 32. A mover replacement system for removing a media mover from a media library, the media library including a library housing, the media mover being movable between an operating position and a removable position, the mover replacement system comprising: a service tray that is removably positionable within the library housing, the service tray being configured to releasably retain the media mover when the media mover is in the removable position so that the service tray and the media mover are movable as an integral unit out of and into the library housing; and an alignment assembly that is configured to ensure that the service tray is properly aligned within the library housing, the alignment assembly including a plurality of first alignment members that are coupled to the library housing, and a plurality of second alignment members that are coupled to the service tray; wherein each of the plurality of second alignment members is configured to engage one of the plurality of first alignment members as the service tray is positioned within the library housing; and wherein each of the plurality of second alignment members is configured not to engage one of the plurality of first alignment members when the service tray has been removed from within the library housing.
 33. The mover replacement system of claim 32 wherein the first alignment members include alignment pins; and wherein the second alignment members include alignment apertures.
 34. The mover replacement system of claim 32 wherein the first alignment members include alignment apertures; and wherein the second alignment members include alignment pins.
 35. The mover replacement system of claim 32 further comprising a plurality of guide rails that are coupled to the library housing, the guide rails being configured to guide the movement of the service tray into and out of the library housing.
 36. The mover replacement system of claim 32 wherein the library housing includes an insert cavity that is configured to receive the service tray.
 37. The mover replacement system of claim 32 further comprising a capture assembly that is configured to enable the service tray to securely receive and releasably retain the media mover when the media mover is in the removable position, the capture assembly including at least one locking mechanism that is movable relative to the tray body between a retracted position when the at least one locking mechanism is positioned not to engage the media mover, and a fully extended position when the at least one locking mechanism is positioned to retain the media mover relative to the tray body when the media mover is in the removable position so that the service tray and the media mover are movable as an integral unit out of and into the library housing.
 38. The mover replacement system of claim 37 wherein the tray body defines a tray opening, and wherein the media mover is releasably retained within the tray opening.
 39. The mover replacement system of claim 38 wherein the at least one locking mechanism includes a first extension arm and a second extension arm; wherein when the at least one locking mechanism is in the retracted position, neither the first extension arm nor the second extension arm extend into the tray opening; and wherein when the at least one locking mechanism is in the fully extended position, both the first extension arm and the second extension arm extend into the tray opening.
 40. A media library including a media mover and the mover replacement system of claim
 32. 